Active sensor, multipoint active sensor, method for diagnosing deterioration of pipe, and apparatus for diagnosing deterioration of pipe, and apparatus for diagnosis deterioration of pipe
First Claim
Patent Images
1. An active sensor positioned on an outside of a pipe so as to detect a thickness of the pipe, the active sensor comprising:
- an oscillator to input oscillatory waves into the pipe and scan a frequency of the oscillatory waves within a desired range; and
an optical fiber sensor mounted on the pipe to detect reflected waves and resonant waves generated in the pipe.
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Abstract
An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
37 Citations
19 Claims
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1. An active sensor positioned on an outside of a pipe so as to detect a thickness of the pipe, the active sensor comprising:
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an oscillator to input oscillatory waves into the pipe and scan a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe to detect reflected waves and resonant waves generated in the pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An active sensor positioned on an outside or an inside of a pipe so as to detect a thickness of the pipe, the active sensor comprising:
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an oscillator to input oscillatory waves into the pipe and scan a frequency of the oscillatory waves over a desired range; and an optical fiber sensor mounted on the pipe to detect reflected waves and resonant waves generated in the pipe.
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Specification